Willis, K., Gillson, L., & Virah-Sawmy, M. (2008). Nature or nuture: The ambiguity of C4 grasslands in Madagascar. Blackwell Publishing.
Lua i Stíl Chicago (17ú heag.)Willis, K., L. Gillson, agus M. Virah-Sawmy. Nature or Nuture: The Ambiguity of C4 Grasslands in Madagascar. Blackwell Publishing, 2008.
Lua MLA (9ú heag.)Willis, K., et al. Nature or Nuture: The Ambiguity of C4 Grasslands in Madagascar. Blackwell Publishing, 2008.
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